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DICTIONARY OF UNITS / MEASUREMENTS

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The Systeme International (SI)

Le Systeme international d'Unites officially came into being in October 1960 and has been officially recognised and adopted by nearly all countries, though the amount of actual usage varies considerably. It is based upon 7 principal units, 1 in each of 7 different categories -

Category               Name      Abbrev.

Length                 metre        m

Mass                   kilogram     kg

Time                   second       s

Electric current       ampere       A

Temperature            kelvin       K

Amount of substance    mole         mol

Luminous intensity     candela      cd

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